=> 4x+4-3x-1 = 14 => (4x-3x)+(4-1) = 14 => x+3 = 14 => x = 14-3 = 11
VẬY X=11
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tìm x biết
\(4\times\left(x+1\right)-\left(3x+1\right)=14\)
(/x/+1).(4-2x)=0
tìm các số nguyên x sao cho
a , \(\left(x-4\right)\left(x+2\right)=0\)
b , \(4\left(x+1\right)-\left(3x+1\right)=14\)
1)4left(x-5right)-3left(x+7right)-192)7left(x-3right)-5left(3-xright)11x-53)4left(2-xright)+4left(x-3right)144)-5left(2-xright)+4left(x-3right)10x-155)7left(x-9right)-5left(6-xright)-5+11x6)-7left(3x-5right)+2left(7x-14right)287)4left(x-5right)-3left(x+7right)5.left(-4right)
Đọc tiếp
1)\(4\left(x-5\right)-3\left(x+7\right)=-19\)
2)\(7\left(x-3\right)-5\left(3-x\right)=11x-5\)
3)\(4\left(2-x\right)+4\left(x-3\right)=14\)
4)\(-5\left(2-x\right)+4\left(x-3\right)=10x-15\)
5)\(7\left(x-9\right)-5\left(6-x\right)=-5+11x\)
6)\(-7\left(3x-5\right)+2\left(7x-14\right)=28\)
7)\(4\left(x-5\right)-3\left(x+7\right)=5.\left(-4\right)\)
\(\left(3x-1\right)^3=25.\left(3x-1\right)\)
\(\left(3x-14\right)^3=2^5.5^2+200\)
Tìm xin Z:a. 2timesleft(x-5right)-3timesleft(x-4right)left(-6right)+15timesleft(-3right)b.left(2x-5right)-722c.left(2timesleft|xright|-6right)times1144d.left|x+3right|+left|x+5right|+left|x+9right|4xe.left|x-1right|+left|x-5right|4g.x+left(x+1right)+left(x+2right)+.......+1000
Đọc tiếp
Tìm \(x\in Z\):
a. \(2\times\left(x-5\right)-3\times\left(x-4\right)=\left(-6\right)+15\times\left(-3\right)\)
b.\(\left(2x-5\right)-7=22\)
c.\(\left(2\times\left|x\right|-6\right)\times11=44\)
d.\(\left|x+3\right|+\left|x+5\right|+\left|x+9\right|=4x\)
e.\(\left|x-1\right|+\left|x-5\right|=4\)
g.\(x+\left(x+1\right)+\left(x+2\right)+.......+100=0\)
Tìm tích:
1.\(\left(\frac{1}{2}+1\right)\times\left(\frac{1}{3}+1\right)\times\left(\frac{1}{4}+1\right)\times...\times\left(\frac{1}{999}+1\right)\)
2.\(\left(\frac{1}{2}-1\right)\times\left(\frac{1}{3}-1\right)\times\left(\frac{1}{4}-1\right)\times...\times\left(\frac{1}{1000}-1\right)\)
3.\(\frac{3}{2^2}\times\frac{8}{3^2}\times\frac{15}{4^2}\times...\times\frac{99}{10^2}\)
Nhờ mn giúp mik với ạ
Tìm GTNN
A= \(\left(x-3y\right)^2+\left(2x-1\right)^4\)
B= \(\left|x-2\right|+\left|3x-2y\right|-4\)
C= \(\dfrac{-4}{\left|x+1\right|\left|y-3\right|+2}\)
D=\(\left|x-5\right|+\left|x-1\right|+7\)
\(\left(1-\frac{1}{2}\right)\times\left(1-\frac{1}{3}\right)\times\left(1-\frac{1}{4}\right)\times...\times\left(1-\frac{1}{20}\right)\)
Tính \(\left(1+\dfrac{1}{1+2}\right)\times\left(1+\dfrac{1}{1+2+3}\right)\times\left(1+\dfrac{1}{1+2+3+4}\right)\times...\times\left(1+\dfrac{1}{1+2+3+...+997}\right)\)